fix: disable LZO compression option and update tests to reflect its unavailability

Author: kosiew

python/datafusion/dataframe.py

@@ -57,7 +57,10 @@ class Compression(Enum):
     GZIP = "gzip"
     BROTLI = "brotli"
     LZ4 = "lz4"
-    LZO = "lzo"
+    # TODO
+    # lzo is not implemented yet
+    # https://github.com/apache/arrow-rs/issues/6970
+    # LZO = "lzo"
     ZSTD = "zstd"
     LZ4_RAW = "lz4_raw"
 

python/tests/test_dataframe.py

@@ -1113,6 +1113,9 @@ def test_write_compressed_parquet_invalid_compression(df, tmp_path, compression)
         df.write_parquet(str(path), compression=compression)
 
 
+# TODO
+# not testing lzo because it it not implemented yet
+# https://github.com/apache/arrow-rs/issues/6970
 @pytest.mark.parametrize("compression", ["zstd", "brotli", "gzip"])
 def test_write_compressed_parquet_default_compression_level(df, tmp_path, compression):
     # Test write_parquet with zstd, brotli, gzip default compression level,